Mechanical movement



(No Model.)

H. P. BRAMMER. MECHANICAL MOVEMENT.

No, 3 Patented June 21,1898.

1 i if 5 a V V O :8 HIIIIIHIFIIHIHI Witt team Tn: Nouns PETERS co. PHOTOL we PATENT HENRY F. BRAMMER, OF DAVENPORT, IOlVA.

MECHANICAL MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 606,044, dated June21,1898.

Application filed December 31,1897. Serial No. 665,027. (No model.)

To all whom, it may concern.-

Be it known that I, HENRY F. BRAMMER, a citizen of the United States,residing at Davenport, in the county of Scott and State of Iowa, haveinvented certain new and usef ul Improvements in Mechanical Movements;and I do declare the following to be a f ull,clear, and exactdescription of the invention, such as will enable others skilled intheart to which it appertains to make and use the same, reference beinghad to the accompanying drawings, and to the letters of reference markedthereon, which form a part of this specification.

My invention relates to an improvement in especially as an improvementupon Patent No.

539,790, dated May 28, 1895; and it consists in a revolving shaftcarrying a vertically-movin g stirrer upon its lower end, combined witha vertically-moving double-cogged casting, which slides freely upon theupper portion of the shaft, as-will be more fully described hereinafter.

The objects of my invention are to so construct the parts that the shafthas simply a rotary movement and so that all of the operating mechanismis located closely together in a compact and practical form.

In the accompanying drawings, Figure 1 is a side elevation of amechanical movement which embodies my invention, partly in section. Fig.2 is a plan View of the lower half of the casting which is applied tothe vertically-moving shaft. Fig. 3 is a detail View showing thesupports upon the frame for the casting. Fig. 4 shows aslightly-difierent form of construction. Fig. 5 is a detail view of theshaft and stirrer, and Fig. 6 shows a detached side view of one of theoperating gear-wheels.

A represents the tub of a washing or other suitable machine, and uponthetop of which is placed the cover B, which has an opening through itscenter for the vertically-moving shaft to pass through. Upon the top ofthis cover is secured the frame (1, in which the operating-shaft D isjournaled. .This shaft D is made to revolve continuously in onedirection and is provided with a wheel or handle at its outer end andthe pinion F, which is rigidly secured to its inner end, and whichpinion has about eight teeth formed upon it, all of which are regular.

Passing down through the top of the cover and through the inner end ofthe frame C is the shaft G, which has only a rotary movement, and whichshaft is provided with a supporting-flange I l upon its lower end andhas its upper end made square, while its lower one is made round and isprovided with the fins lifor the purpose of preventing the stirrerJ fromturning independently of the shaft. The round portion of the shaft G mayeither extend up through the frame 0 or the round portion may stop belowthe top of the tub and the revolving collar K be applied to the shaft.This collar-,having a square opening to correspond to the shaft andbeing round upon its outer side, is made to rotate in the frame 0, asshown. Applied to the upper end of this shaft G is a second collara',which is similarly shaped to the one K, and just above this collarthrough the shaft is passed the pin M, which serves to support the shaftand its attachmentsin position. By removing this pin M the shaft willdrop, and then the parts connected therewith can be readily rev moved.

Placed loosely upon the square portion of the shaft G is avertically-sliding casting N, which has its two ends formed into twobeveled wheels a b, which have the teeth set facing each other and whichare alike, with the exception of the flange 0 upon the lower end, andWhichwheels alternately engage with the pinion F, the upper one of thetwo wheels causing the shaft G to revolve in one direction and the lowerone causing it to revolve in the opposite one. Both of these wheels areprovided with about fifteen teeth, all of which are alike, with theexception of three upon one side. The centralone, P, of these three islarger and higher than either one of the two, Q, next to it; but thesetwo teeth Q are higher than the other twelve teeth, and the recessesbetween each of these teeth Q and the next following teeth are not asdeep as those between the other twelve teeth. The object in making thethree teeth P and Q as here shown is to make the ascent from the twelveregular teethto the highest one, P,

gradual, so that as the teeth of the pinion approach the tooth P themovement will be regular, and thus avoid all jarring of the parts. Thepinion causes each of the two wheels at the end of the casting L torevolve evenly until the teethP and Q are encountered, and then theteeth Q, being higher than the other twelve, begin to force the castingN in an endwise direction upon the shaft G, and when the tooth P isreached, which is larger and higher than any of the others, this tooth Pstrikes against and rides on the top of one of the teeth upon thepinion, and thus forces the casting N endwise upon the shaft G until theside of the opposite tooth P contacts with the side of another one ofthe pinion-teeth, the parts being so arranged that the other wheel onthe opposite end of the casting is then in position to gear with thepinion F, and thus instantly reverse the movement of the shaft. Therotary movement of the shaft G and the casting N continues until thistooth P strikes upon the pinion, and then the endwise movement of theshaft takes place and immediately the rotary movement is reversed.

The two wheels a Z) are exactly alike, with the exception that the one bhas a flange O, which extends about three-quarters of the distancearound its lower edge, and then the flange is cut away, as shown, andhas its ends beveled so as to correspond to the bevel upon the ends ofthe top support U. Upon the side of the frame 0 next to the shaft G thetwo supports U V are formed, the upper one serving to support thecastingN in its raised position and the lower one .serving to regulatethe distance the casting shall drop and at the same time assist thepinion in supportin g the weight of the casting. When the shaft andcasting revolve until the opening in the flange O is reached, the toothP on the lower wheel 1) causes the casting to sink upon the shaft untilthe upper wheel a comes in contact with the pinion, and then the flangeO rests upon the lower support V and revolves thereon. When the tooth Pon the upper wheel a strikes the pinion and forces the castin g Nupward, the flange O catches upon the upper support U. These supportsprevent the casting from coming in contact with such force as to causethe pinion to be hard to turn. Were it not for the upper support theweight of the casting would cause the upper wheel a to remain in contactwith the pinion, except when its tooth P causes the casting to rise.

The stirrer J, being placed loosely upon the shaft G, automaticallyadjusts itself to the height of the clothes in the tub; but owing to thefins I it can only revolve in either direc tion as the shaft G isturned.

By making the casting vertically adjustable independently of the shaftthe parts can be more readily taken apart and put together, and the easeof operation is greatly increased, because the shaft does not have to beraised and the operating mechanism is placed in a compact operativeposition.

Having thus described my invention, I

claim 1. In a mechanical movement, a continuously-revolving shaft and apinion upon its inner end, combined with a vertical shaft having arotary movement, and which shaft is made angular at its upper end, acasting loose upon the shaft and provided with teeth of unequal sizeupon both of its ends, and which casting is adapted tohave arising-andfalling movement upon the shaft; the two toothed wheels of thecasting being adapted to alternately come in contact with the pinion,and thus reverse the movement of the shaft, substantially as shown.

2. 111 a mechanical movement, a continuously-rotating shaft providedwith a pinion upon its inner end; the shaft G and the casting N looseupon and adapted to have a risingand-falling movement upon the shaft,but revolving therewith; each end of the casting being provided withwheels which face toward each other, and having the teeth P Q of greaterheight than the other teeth, substantially as described.

3. The continuously-rotating shaft 1), provided with the pinion F, thevertical shaft G, the casting N placed loosely thereon and adapted tohave a rising-and-falling move-- ment upon the shaft but turningtherewith, each end of the casting being provided with wheels which areset facing each other, the teeth being of unequal size; and the flangeupon the lower end of the casting; and the supports U, V, upon theframe, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY F. BRAMMER.

Witnesses:

T. A. MURPHY, I. O. ANDERSON.

